50
8-4. Freeze Prevention (Cooling)
●
This function prevents freezing of the indoor heat exchange coil.
●
When the compressor has been running for 10 minutes or more and the temperature of the indoor heat
exchange coil falls below 30°F, the control circuit stops the compressor for at least 6 minutes. The compressor
does not start again until the temperature rises above 46°F or 6 minutes has elapsed.
8-5. Overload Prevention (Heating)
●
This function prevents overheating of the indoor heat exchange coil.
●
When the temperature of the indoor heat exchange coil rises above 139°F, and if the indoor fan is L (low
speed), then the fan speed changes from L (low speed) to M (medium speed).
●
When the temperature of the indoor heat exchange coil rises above 141°F, the outdoor fan stops.
ON
ON
OFF
ON
H or M or L
H
➞
H, M
➞
M, L
➞
M
141
139
126
120
Indoor heat
exch. coil
temp.
¡
F
Outdoor fan
Indoor fan
Compressor
ON
ON
ON
ON
OFF
OFF
Set speed
More than
10 minutes
6 minutes
T + 4
¡
F
Indoor heat exch.
coil temp.
30
¡
F
Compressor
Indoor fan
Room temp.
Thermo. OFF
Thermo. ON
Set temp. T
¡
F
More than
10 minutes
More than
6 minutes
Set speed
000-111
SM
(18-68)
00.3.17
11:49
AM
y [ W 50
Summary of Contents for CH0951
Page 41: ...37 5 Printed circuit board POW KHS095A for KHS0951 Top view Bottom view ...
Page 42: ...38 6 Printed circuit board POW KHS125A for KHS1251 Top view Bottom view ...
Page 43: ...39 7 Printed circuit board POW KHS095B for KHS0951 and KHS1251 Top view Bottom view ...
Page 44: ...40 8 Printed circuit board POW KHS1852 for KHS1852 Top view Bottom view ...
Page 45: ...41 9 Printed circuit board POW CH095 for CH0951 CH1251 and CH1852 Top view ...
Page 72: ...68 INSTRUCTION MANUAL KHS0951 CH0951 KHS1251 CH1251 KHS1852 CH1852 APPENDIX ...
